X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/36b1cdd1b4064e1a506b5bab0d00e61b91cb10b2..7361a18f7a24a7b0dd6e76919ef389202543cdc5:/client/fpga_compress.c?ds=sidebyside diff --git a/client/fpga_compress.c b/client/fpga_compress.c index a672ab58..418a02b8 100644 --- a/client/fpga_compress.c +++ b/client/fpga_compress.c @@ -1,4 +1,6 @@ //----------------------------------------------------------------------------- +// piwi, 2017, 2018 +// // This code is licensed to you under the terms of the GNU GPL, version 2 or, // at your option, any later version. See the LICENSE.txt file for the text of // the license. @@ -11,9 +13,11 @@ #include #include +#include #include #include #include +#include "fpga.h" #include "zlib.h" #define MAX(a,b) ((a)>(b)?(a):(b)) @@ -37,18 +41,18 @@ #define COMPRESS_MAX_NICE_LENGTH 258 #define COMPRESS_MAX_CHAIN 8192 -#define FPGA_INTERLEAVE_SIZE 288 // (the FPGA's internal config frame size is 288 bits. Interleaving with 288 bytes should give best compression) -#define FPGA_CONFIG_SIZE 42336L // our current fpga_[lh]f.bit files are 42175 bytes. Rounded up to next multiple of FPGA_INTERLEAVE_SIZE #define HARDNESTED_TABLE_SIZE (sizeof(uint32_t) * ((1L<<19)+1)) static void usage(void) { fprintf(stdout, "Usage: fpga_compress ... \n"); fprintf(stdout, " Combine n FPGA bitstream files and compress them into one.\n\n"); - fprintf(stdout, " fpga_compress -d "); - fprintf(stdout, " Decompress . Write result to "); - fprintf(stdout, " fpga_compress -t "); - fprintf(stdout, " Compress hardnested table . Write result to "); + fprintf(stdout, " fpga_compress -v ... \n"); + fprintf(stdout, " Extract Version Information from FPGA bitstream files and write it to \n\n"); + fprintf(stdout, " fpga_compress -d \n"); + fprintf(stdout, " Decompress . Write result to \n\n"); + fprintf(stdout, " fpga_compress -t \n"); + fprintf(stdout, " Compress hardnested table . Write result to \n\n"); } @@ -60,7 +64,7 @@ static voidpf fpga_deflate_malloc(voidpf opaque, uInt items, uInt size) static void fpga_deflate_free(voidpf opaque, voidpf address) { - return free(address); + free(address); } @@ -108,7 +112,7 @@ int zlib_compress(FILE *infile[], uint8_t num_infiles, FILE *outfile, bool hardn for(uint16_t j = 0; j < num_infiles; j++) { for(uint16_t k = 0; k < FPGA_INTERLEAVE_SIZE; k++) { - c = fgetc(infile[j]); + c = (uint8_t)fgetc(infile[j]); if (!feof(infile[j])) { fpga_config[i++] = c; } else if (num_infiles > 1) { @@ -252,9 +256,162 @@ int zlib_decompress(FILE *infile, FILE *outfile) } +/* Simple Xilinx .bit parser. The file starts with the fixed opaque byte sequence + * 00 09 0f f0 0f f0 0f f0 0f f0 00 00 01 + * After that the format is 1 byte section type (ASCII character), 2 byte length + * (big endian), bytes content. Except for section 'e' which has 4 bytes + * length. + */ +static int bitparse_find_section(FILE *infile, char section_name, unsigned int *section_length) +{ + int result = 0; + #define MAX_FPGA_BIT_STREAM_HEADER_SEARCH 100 // maximum number of bytes to search for the requested section + uint16_t numbytes = 0; + while(numbytes < MAX_FPGA_BIT_STREAM_HEADER_SEARCH) { + char current_name = (char)fgetc(infile); + numbytes++; + if(current_name < 'a' || current_name > 'e') { + /* Strange section name, abort */ + break; + } + unsigned int current_length = 0; + switch(current_name) { + case 'e': + /* Four byte length field */ + current_length += fgetc(infile) << 24; + current_length += fgetc(infile) << 16; + numbytes += 2; + default: /* Fall through, two byte length field */ + current_length += fgetc(infile) << 8; + current_length += fgetc(infile) << 0; + numbytes += 2; + } + + if(current_name != 'e' && current_length > 255) { + /* Maybe a parse error */ + break; + } + + if(current_name == section_name) { + /* Found it */ + *section_length = current_length; + result = 1; + break; + } + + for (uint16_t i = 0; i < current_length && numbytes < MAX_FPGA_BIT_STREAM_HEADER_SEARCH; i++) { + (void)fgetc(infile); + numbytes++; + } + } + + return result; +} + + +static int FpgaGatherVersion(FILE *infile, char* infile_name, char *dst, int len) +{ + unsigned int fpga_info_len; + char tempstr[40] = {0x00}; + + dst[0] = '\0'; + + for (uint16_t i = 0; i < FPGA_BITSTREAM_FIXED_HEADER_SIZE; i++) { + if (fgetc(infile) != bitparse_fixed_header[i]) { + fprintf(stderr, "Invalid FPGA file. Aborting...\n\n"); + return(EXIT_FAILURE); + } + } + + strncat(dst, basename(infile_name), len-1); + // if (bitparse_find_section(infile, 'a', &fpga_info_len)) { + // for (uint16_t i = 0; i < fpga_info_len; i++) { + // char c = (char)fgetc(infile); + // if (i < sizeof(tempstr)) { + // tempstr[i] = c; + // } + // } + // strncat(dst, tempstr, len-1); + // } + strncat(dst, " built", len-1); + if (bitparse_find_section(infile, 'b', &fpga_info_len)) { + strncat(dst, " for ", len-1); + for (uint16_t i = 0; i < fpga_info_len; i++) { + char c = (char)fgetc(infile); + if (i < sizeof(tempstr)) { + tempstr[i] = c; + } + } + strncat(dst, tempstr, len-1); + } + if (bitparse_find_section(infile, 'c', &fpga_info_len)) { + strncat(dst, " on ", len-1); + for (uint16_t i = 0; i < fpga_info_len; i++) { + char c = (char)fgetc(infile); + if (i < sizeof(tempstr)) { + tempstr[i] = c; + } + } + strncat(dst, tempstr, len-1); + } + if (bitparse_find_section(infile, 'd', &fpga_info_len)) { + strncat(dst, " at ", len-1); + for (uint16_t i = 0; i < fpga_info_len; i++) { + char c = (char)fgetc(infile); + if (i < sizeof(tempstr)) { + tempstr[i] = c; + } + } + strncat(dst, tempstr, len-1); + } + return 0; +} + + +static void print_version_info_preamble(FILE *outfile, int num_infiles) { + fprintf(outfile, "//-----------------------------------------------------------------------------\n"); + fprintf(outfile, "// piwi, 2018\n"); + fprintf(outfile, "//\n"); + fprintf(outfile, "// This code is licensed to you under the terms of the GNU GPL, version 2 or,\n"); + fprintf(outfile, "// at your option, any later version. See the LICENSE.txt file for the text of\n"); + fprintf(outfile, "// the license.\n"); + fprintf(outfile, "//-----------------------------------------------------------------------------\n"); + fprintf(outfile, "// Version information on fpga images\n"); + fprintf(outfile, "//\n"); + fprintf(outfile, "// This file is generated by fpga_compress. Don't edit!\n"); + fprintf(outfile, "//-----------------------------------------------------------------------------\n"); + fprintf(outfile, "\n"); + fprintf(outfile, "\n"); + fprintf(outfile, "const int fpga_bitstream_num = %d;\n", num_infiles); + fprintf(outfile, "const char* const fpga_version_information[%d] = {\n", num_infiles); +} + + +static int generate_fpga_version_info(FILE *infile[], char *infile_names[], int num_infiles, FILE *outfile) { + + char version_string[80] = ""; + + print_version_info_preamble(outfile, num_infiles); + + for (int i = 0; i < num_infiles; i++) { + FpgaGatherVersion(infile[i], infile_names[i], version_string, sizeof(version_string)); + fprintf(outfile, "\t\"%s\"", version_string); + if (i != num_infiles-1) { + fprintf(outfile, ","); + } + fprintf(outfile,"\n"); + } + + fprintf(outfile, "};\n"); + + return 0; +} + + int main(int argc, char **argv) { FILE **infiles; + char **infile_names; FILE *outfile; if (argc == 1 || argc == 2) { @@ -271,43 +428,56 @@ int main(int argc, char **argv) } infiles[0] = fopen(argv[2], "rb"); if (infiles[0] == NULL) { - fprintf(stderr, "Error. Cannot open input file %s", argv[2]); + fprintf(stderr, "Error. Cannot open input file %s\n\n", argv[2]); return(EXIT_FAILURE); } outfile = fopen(argv[3], "wb"); if (outfile == NULL) { - fprintf(stderr, "Error. Cannot open output file %s", argv[3]); + fprintf(stderr, "Error. Cannot open output file %s\n\n", argv[3]); return(EXIT_FAILURE); } return zlib_decompress(infiles[0], outfile); - } else { // Compress + } else { // Compress or gemerate version info bool hardnested_mode = false; + bool generate_version_file = false; int num_input_files = 0; - if (!strcmp(argv[1], "-t")) { // hardnested table + if (!strcmp(argv[1], "-t")) { // compress one hardnested table if (argc != 4) { usage(); return(EXIT_FAILURE); } hardnested_mode = true; num_input_files = 1; - } else { + } else if (!strcmp(argv[1], "-v")) { // generate version info + generate_version_file = true; + num_input_files = argc-3; + } else { // compress 1..n fpga files num_input_files = argc-2; } + infiles = calloc(num_input_files, sizeof(FILE*)); - for (uint16_t i = 0; i < num_input_files; i++) { - infiles[i] = fopen(argv[i+hardnested_mode?2:1], "rb"); + infile_names = calloc(num_input_files, sizeof(char*)); + for (uint16_t i = 0; i < num_input_files; i++) { + infile_names[i] = argv[i+((hardnested_mode || generate_version_file)?2:1)]; + infiles[i] = fopen(infile_names[i], "rb"); if (infiles[i] == NULL) { - fprintf(stderr, "Error. Cannot open input file %s", argv[i+hardnested_mode?2:1]); + fprintf(stderr, "Error. Cannot open input file %s\n\n", infile_names[i]); return(EXIT_FAILURE); } } outfile = fopen(argv[argc-1], "wb"); if (outfile == NULL) { - fprintf(stderr, "Error. Cannot open output file %s", argv[argc-1]); + fprintf(stderr, "Error. Cannot open output file %s\n\n", argv[argc-1]); return(EXIT_FAILURE); } - return zlib_compress(infiles, num_input_files, outfile, hardnested_mode); + if (generate_version_file) { + if (generate_fpga_version_info(infiles, infile_names, num_input_files, outfile)) { + return(EXIT_FAILURE); + } + } else { + return zlib_compress(infiles, num_input_files, outfile, hardnested_mode); + } } }